Scaffold structure



3&2?? M7025?? W. G. VENAR@ S GAFFOLD STRUCTURE Filed Feb. 15j, 1927 ES Sheets-Sheet l Wen-nam?,

- TTORNEY Fine i9, 1929. 1,702,527

W. G. VENARD SCAFFOLD STRUCTURE Fmed Feb. 16, 1927 5 Sheets-sheet 2 IN V EN TOR]o @[65- ]Zw rd;

Patented F eb. 19, 1929.

UNITED STATES WILLIAM G. VENABD, OF LOS ANGELES, CLAILIIOIBNIA.l

SCAFFOLD STRUCTURE.

Application led February 16, 1927i Serial No. 168,666.

This invention relates to buildingscaold structures andA more especially to a knockdown, por-table, scaffold equipment.

An object of the invention is to provide a scaiold system of interlocking columns and girders adapted to be erected stage on stage as the wall of a building is built up by workmen on the scaffold platform.

Another object is to provide a step-by-step l0 built scaffold apparatus incor rating a fabrication of disconnective mem rs which provide a work platform,'a material trackway and an elevator carriage tower. y f

A further object is to provide a' column scafold in distinction from an overhead suspension apparatus scaffold, and to provide means for attachment to the columns of the system and whereby deck equipment may be raised or lowered, in stages of operation.

Additional objects, advantages and features of the invention will be made manifest in the following specification of the herewith illustrated embodiment of the invention; it being understood that variations, modifications and adaptations may7 be resorted to within the spirit, scope and principle of the invention as it is more directly hereinafter claimed. p

Figure 1 is a front elevation of the scaffold. Figure 2 is a plan of the scaffold. Figure 3 is an elevation of atop-header applied to the tops of tower forming columns. Figure 4 is a detail of a column-top cable hook of an elevator means.

Figure 5 is an elevation of a column unit. Figure 6 is an elevation land partial section of an elevator element, showing platform boards laid thereon.` y Figure 7 is an elevation of an elevator drum as adapted to a long elevator element. Figure 8 is a detail of a winch lock. Figures 9 and 10 show a flexible rail joint i to allowT a change of angle of connected rail p sections. l

Figures 11 and 12 are-'elevation and plan views of portions of longitudinal girders of the frame.

Figure 13 is a plan of a girder nest; its column being in cross-section.

girder. l

In the present system a suitable number of duplicate, interchangeable 4columns 2 are each provided with.spaced rests or nests 3 each having a plurality of angularlys aced,

conical seat forming sockets lLopen att e top may be set in three series Vumns are capped by headers 15 having the headers 15.

12" and in some cases t Figure 14is a plan of a portion of a crossand at the outer side for the reception o f wedge plugs 5 provided at the ends of longitudinal girders 6 and of cross girders 7 latter being here shown as of channel-non, to carry a load.

Preferably the connecting plugs 5 are attac-hed to the girders by means which allow of a desired or necessary change of angle of the latter as indicated by dotted lines in Fig. 11. To that end the plug 5 has a shank wlth a toothed cheek 5a to clamp against a friction part or tongue 5* at the end of the girder. are adapted to'be firmly clamped at any desired angle by a bolt 8.

The bottom of each plug 5 has a stout hook 9 and each socket nest 3 has a set of top hooks 10. y

In practice, two or more series of the co1n umns 2 are set up at. given distance and spacing along a proposed building wall line and the first course of columns 2 is braced by applying the girders 6 and 7 to the sets of nests.

As courses of the columns are successively superimposed, guy lines or rods 12 are run dia on ll to connect with `hooks 10 and hoos 9 of, the coordinate parts.

The lower end of each column 2 has a fixed sleeve 13 to telescope over the top of the next lower course column; these being built up in any desired number. Y

As shown in plan, Fig. 2,` the columns along a wall line and an outer group of columns may be disposed and built up to form an elevator carriage shaft having vertical rails 14 for its carriages, one of which is shown at E. *In

this tower or shaft group the tops of the colcu s 16 to set over the ends of the columns. Suitable carriage lifting rigging `is mounted on As course after course of the scaffold frame arts 2--6-7 is assembled the guys 12 are applied and tightened up, as by turn-buckles e guys have take-up chains 12".

The sockets 4 have wide side openings to allow for angular relational sition o the applied girders, as indicated 1n Fig. 13.

` Means are included forsupporting and vertically adjusting appropriate decking equi ment, as workmens platform and car trac way, and here includes transversely disposed elements 20 consistin of inverte v iron elements which ave bottom straps 21 to slidably support a spacer 22, in thel elechannelof thetier column, as is shown in Fig. 5.

Different lengths of elevator elements may be employed. Short lengths 2O are used when only a workmens platform P is to be hung on the tiers. Where a triple series of tiers areused so as to provide for a trackway T, outside of the platform, then longer beams 2Oa are employed. The drums 25 have cradles 29 swivelled on vertical pivots 80 on the base 31, which has loops 32 to slide onto the beam 20 and fasten by a bolt 33. The loops 32 are so spaced as to straddle the sides of the longery beams 20a when applied thereto with the base" '31 in a cross-wise position. In such case the cradle and drum 25 are `turned across 'the base. Bolts 34 hold the loops to the beam 20a. y

The trackway includes sleepers 35 ycarrying rail sections 36 Whose contiguous ends are spliced by side links 37 and pivot bolts 38, which allow of some angular deflection up or down as may be advantageous in erecting the scaffold.

The-scaffold may be installed in straight or angle or curved lines of columns.

What is claimed is: 4

1. A scaffold system including tiers of columns, and hoistable deck apparatus including elevator elements with windable hitches attachable to respective pairs of tiers, said elements having telescopic steadying spacersl to stand the deck out from the wall.

2. A scaffold system including tiers of columns, means interlocking the columns, ele- Vator elements for decking equipment, and Winches having bases withloop parts lto telescopically receive said elements, the Winches being swivelledon their bases for angular adjustment.

3. A scaffold system'including series of columns, girders interlocking the columns, coordinate columns and girders, andl deck carrying elevator elements transversely arranged above the highest girders so as to be adjustable upward thereover and having hitch means for attachment to the tops of the tiers; said elements hanging freefrom the near columns.

4. A scaffold system including tiers of columns, means connecting tiers transversely to form laterallyl spaced series, guys for the tiers, and a platform vertically' adjustable between series of the tiers and havingy hoist tackle with carriers swinging free of the columns and'hitchable to cross sets of the tiers the tackle being transferable from column to column of the erected system.

5. A scaffold system including an inner, an outer and an intermediate series of column tiers, girders interlocking Awith respective columns along and across the series, and elevator elements extending across the series i -carrying beam, winch bases having alined cross loops in whichthebean is Aslidably mounted, and a suspending winch including a cradle turnably connected to the top of its `base and adapted for longitudinal and trans-` verse adjustment as to the base when mounted on a beam. p

7. In a scaffold system, a suspending winch having a cradle and a base with a pair of transversely disposed, longitudinally spaced and coaxial loops on its bottom, said loops beine' adapted to telescopically receive a scaffoldlbeam or to embrace the sides of an inter- Epsed beam straddled by the base, said cradle ing pi'voted on the base; whereby the cradle may be set longitudinally of a beam irrespective of the position of the base on the beam.

8. A scaffold system including tiers of columns in inner and outer series, girders detachably interlooked with coordinate columns, transversely disposed, elevator elements disposed atthe sides of respective columns and free thereof, and means carried by said elements hitchable to the open tops of respective columns for vertically shifting the elevators. v

9. In a scaffold system, a winch means including a base` device applicable to a platform .car ing beam to lie either along or across the am, and a cradle carrying a ro e drum and being rotatively attached to tlie base so as to be set either along or across the base to lie along the relative beam.

y 10. kA 4building scaiil'old system having in combination, spaced series of columns, forming an inner way for a workmens platform 4 and an outer way foratrack along the scaffold,l a shaft for skip carriages, elevator elements extending across the series and carrying a platform and a track means in parallelism and common plane for a vehicle oper- `tive along the track means, and a skip carriage operative on the shaft to convey material to the vertically elevated` track meansand platform on said elements.

W. G. vENAnD. i 

